Fastening-inserting machine



2 Sheet s-Sheet 1 F. N. LA CHAPELLE FASTENING INSERTING MACHINE Original Filed June 4, 1925 FFIIIIW May 6, 1930.

May 6, 1930. F. N. LA CHAPELLE FASTENING INSERTING MACHINE Original Filed June 4, 1925 2 ed heet 2 Patented May 6, 1930 UNITED STATES PATENT OFFICE FRED N. LA CHAPELLE, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY FASTENING-INSERTING MACHINE Original application filed June 4, 1925, Serial No. 34,838. Divided and this application filed September 27, 1927. Serial No. 222,360.

This invention relates to fastening inserting machines, and is illustrated herein as embodied in a machine arranged to drive fibre pegs into shoe parts.

This application is a division of my copending application, Serial No. 34,838, filed June 4, 1925, which discloses a novel fastening, particularly adapted to use in the manufacture of boots and shoes, comprising a twisted paper peg impregnated and coated with sizing or stiffening material, and on which Letters Patent of the United States No. 1,729,169 were granted Sept. 24, 1929. It is an object of the present invention to provide machinery particularly adapted to drive such pegs.

A feature of the invention comprises a novel arrangement for operating and controlling a member of the machine which acts both as an awl and as a driver. As illustrated, this awl and driver member is driven by a spring, being cyclically moved from the work against the force of the spring and then released so that the spring drives the member toward the work. Mechanism illustrated as a stop arranged for movement into and out of operative relation to this awl and driver member or to its carrier is provided in the construction herein disclosed to cause the aWl and driver member alternately to penetrate and form fastening receiving holes in the work, thus acting as an awl, and to drive fastenings into said holes, at which time it stops substantially level with the surface of the work.

Another feature of the invention comprises a work support movable between two operative positions and having a hole positioned, when the work support is in one of these posi tions, in alinement with the path of move ment of a tool which acts alternately as an awl and as a driver, said hole being arranged to receive the end of the tool and a chip punched from the work by the tool, said work support having also a clenching cavity positioned in line with the tool when the work support is in the other operative position and arranged thereby to facilitate the heading of the entering ends of the fastenings inserted.

While the invention is herein disclosed in connection with a fastening inserting machine developed to drive paper pegs into shoe parts, it should be understood that in various of its aspects the invention is not so limited since obviously it is applicable to machines for inserting other kinds of fastenings and for inserting fastenings into other objects than shoe parts.

lVith the above and other objects and features in View the invention will now be described in connection with the accompanying drawings and pointed out in the claim.

In the drawings,

Fig. 1 is a front elevation of the head of a fastening inserting machine embodying the present invention;

Figs. 2 and 3 are front elevational views on a larger scale and partly in cross-section illustrating the forming of a hole in a shoe and the insertion of a paper peg therein by the combined awl and driver member of the machine;

Fig. 4 is a similar view showing an arrangement by which the paper fastenings may be clenched and headed as they are inserted;

Fig. 5 is a perspective view on a smaller scale than Fig. 4 further illustrating the work support and means for controlling the clenching of the fastenings by a machine equipped as is the machine of Fig. 4;

Fig. 6 is an enlarged view of a paper peg having its entering end of a fish-tail formation so as to facilitate the clenching thereof by a machine equipped as in Figs. l and 5;

Fig. 7 is a View on the same scale as Fig. 6 further illustrating the clenching and heading of the fastenings; and

Fig. 8 is an exploded view of means for severing the pegs with lislntail points.

The illustrated machine is provided with a reel 230 (Fig. 1) containing a supply of fastening material which, as disclosed in said Patent No. 1,729,169, is preferably in the form of a strip or string 232 of paper twine from which. individual paper pegs are cut and inserted by the machine. For this purpose, as shown in Figs. 2 and 3, which illustrate the machine as used for McKay sole laying, the strip 232 passes through a passage 234 formed in a guide member 235 and is thus directed into an opening 236 formed in a slide block 238. The strip 22 may be fed from the reel 230 to the guide member 235 in any suitable manner. blide block 2238 is reciprocated by suitable mechanism to shear individual fastenings from the strip 232 and to transfer the sheared fastenings into alinement with a hole 2. .0 in the guide member 235, the hole 240 acting also as a driver guide for the driver 242 of the machine.

The driver 242 is carried by a driver bar 2&4; (Fig. 1) provided with a lifting block 246 arranged in the path of movement of a rotating cam 2&8, the latter having two lifting elements 250 and 252 so that the driver bar and driver are lifted twice in each cycle of operation of the machine. A spring 325i is provided to force the driver bar and driver downwardly when lifting block 246 escapes from lifting member 25H or 252 of cam 2&8. During the first stroke of each cycle of operation of the machine the driver acts as an awl and punches a hole in the material. Accord ingly, the full stroke of the driver is such as to project it beyond the nozzle 256 of the machine to an extent equal to the depth to which the fastening is to be inserted in the work. During the second stroke the driver operates to insert a fastening which has been severed from the strip 232 and moved into alineinent with the opening through nozzles 256 and for this purpose it is necessary that the stroke of the driver shall be shorter than its punching stroke. If, as is usually the case, the [astening is to be driven substantially liush with the surface of the work, the driver at this time will reach substantially to the end of the nozzle, and no further. Accordingly, lifting block 246 is provided with an adjustable stop member 258, and a co-operating stop 260 is arranged for movement into and out of operative relation thereto. Stop 260 is carried by a lever ful'erumed at 262 to the head of the machine and provided with an arm 264 carrying a roll 266 held in operative relation to a cam 268 by a spring 270. The conformation of cam 268 is such that during the first stroke of the driver bar in each cycle of operation stop 260 is moved to the right, as viewed in Fig. 1, so that it is ineffective, the driver bar continuing its downward motion until a block 272 carried by the driver bar contacts with a stop 280. Just prior to the commencement of the second stroke of the driver bar 244, however, stop 260 is moved to the left beneath stop 258 so that the second stroke of the driver is short, and it moves only far enough to insert the fastening in the work.

Means for operating the slide block 238 to sever fastenings from the strip and to transfer them to the driver passage 240, means for feeding the fastening strip, and means for operating cam 248 may be provided in accordance with the usual practice in conneetion with spring-drive fastening-insertiug machines of the type which sever fastenings from a wire, for example as disclosed in United States Letters Patent No. 910,1l7, granted January 19, 1909, on an application liled in the name of Frederick H. Perry.

The illustrated machine is provided with means to moisten, and thereby to soften, the adhesive material, for instance glue, with which the fastenings are coated so as to coment the fastenings in the stock into which they are driven. For this purpose the machine is provided with a reservoir 28% from which liquid may pass through a tube 286 to a piece of felt or other suitable nraterial 288 (Figs. 2 and 3) located in a cavity inside the nozzle 256 and positioned to moisten the fastenings as they pass through the opening in the nozzle and to prevent the escape of the liquid from the driver passage 240. The na ture of the liquid used for this purpose will depend upon the nature of the surface coat ing of the fastening material. If the fastening material is sized with glue, the fastenings may be moistened with water, while if sized with shellac. they may be moistened with alcohol.

The machine of Figs. 4 and 5 illustrates a construction adapted to facilitate heading of the paper lastenings. This machine, which may be for most part like the machine of Fig. l, is provided with a. work support 302 mounted for vertical sliding movement. from an inoperative to a work presenting position. in ways 304 carried by a bracket 306 secured in the column of the machine. Any suitable mechanism may be provided to effect this sliding movement of the work support 302. The work support 302 includes a sliding block 308 provided with an opening 310 of a. size to receive the driver 242 of the machine. The block 308 is arranged for backward and forward movement so that opening 310 is moved forward into alinement with driver 242 when the latter serving as a punch or awl and rearward so as to bring a clenching cavity 312 into alinement with the driver when the latter is operated to insert a fastening. As illustrated. the clenching surface 312, which is formed on the upper end of a removable pin 313 clamped in a hole formed in block 308, is formed with a central projection on each side of which is a shallow cavity thereby to head a fastening having a lishtail point. The upper surface of slide block 314 and the (to-operating lower surface of guide member 315 are of an angular formation, as illustrated at 316 5 and 5), so as to sever pegs of the shape illustrated at 317 in Fig. 6. Pegs cut in this fashion and of a length a little longer than the thickness of the work may be headed in this manner and are so shown in Fig. 7.

Appropriate means for moving block 308 back and forth between punching and fastening inserting positions is illustrated in Fig. 5. Block 308 is mounted in a slideway 318, a pin 320 carried by block 308 co-operating with a slot 322 formed in the side of way 318 and limiting the backward and forward movement of block 308. A spring 32-1 (Fig. 4) having a bearing at one end against a shoulder 326 formed in block 308 and at the other end against a pin 328 carried by way 318 tends to move block 308 to its forward position with hole 310 in alinement with driver 242. A bell crank lever 330 fulcrumed at 332 to the frame of the machine has a depending arm bearing against a pin 334 carried by the rear of block 308 and moves the latter rearwardly when rocked in a clockwise direction, as viewed in Fig. 5. The rearwardly extending arm of bell crank lever 330 is connected to a vertically movable rod 336 having a sliding bearing 338 in the frame of the machine and carrying at its upper end a cam roll 340 located in the track of a cam 342 carried by the main drive shaft of the machine. Cam 342 is of such a formation that block 308 is permitted to move forward to bring the opening 310 into nlinenicnt with driver 24:? of the machine during the punching stroke of the latter, the chips punched from the work being ejected through hole 310, as shown in Fig. 4. After the hole has been punched and the driver starts upward block 308 is moved rearwardly to bring clenching cavity 312 into alinement with the driver, as illustrated in Fig. 7. and when the fastening is driven it is headed as shown in that figure.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. A fastening inserting machine having a tool acting both as an awl and as a driver, a spring tending to force said tool toward a work piece presented to the machine, means for raising the tool against the action of said spring and thereby compressing the spring and for then releasing the tool to permit the spring to force the tool toward the work, and means for causing the tool alternately to penetrate the work to form a fastening receiving opening and to drive a fastening in said opening.

A fastening inserting machine having a tool acting both as an awl and as a driver, a spring tending to force said tool toward a work piece presented to the machine, a rotating cam operating to raise the tool against the action of said spring and then to release the tool, thereby permitting the spring to force the tool toward the work, and means for causing the tool alternately to penetrate the Work to form a fastening receiving opening therein and to drive a fastening in said opening.

3. A fastening inserting machine having a tool arranged to act alternately as an awl and as a driver, a spring tending to force said tool toward a work piece presented to the machine, a cam arranged to move the tool away from the work piece against the action of the spring, and means for controlling the path of movement of the tool arranged to cause the tool aiternatcly to punch holes in the work piece presented toihe machine and 1-; insert fastcnings in said holes.

4. A fastening inserting machine having a tool acting alternately as an awl and a driver, menus for reciprocating said tool twice during each cycle of operation of the machine, and a stop operable to control the path of reciprocation of said tool and arranged to permit the tool at its first reciprocation in each cycle to more through a path long enough to cause it to punch a hole in the workand to cause the tool during its second reciprocation in each cycle to move through a shorter path to act as a driver.

5. A fastening inserting machine having a tool acting alternately as an awl and as a driver, means for reciprocating said tool twice during each cycle of operation of the machine, and a stop arranged for movement into and out of the path of a portion of the machine reciprocating with said tool arranged to permit the tool at its first reciprocation during each cycle to move through a path long enough to cause it to punch a holein the work and to cause the tool during its second reciprocation of each cycle to move through a shorter path at which time it acts as a driver.

6. A fastening inserting machine having a tool acting alternately as an awl and as a driver. means for reciprocating said tool twice during each cycle of operation of the machine, and means for controlling the path of reciprocation of said tool constructed and arranged to permit the tool at its first reciprocation in each cycle to move through a long path to punch a hole in the work and to cause the tool in its second reciprocation, when it acts as a driver, to move through a short path to accord with the depth to which the fastening is to be driven.

7. A fastening inserting machine having a tool acting alternately as an awl and as a driver, means for reciprocating said tool twice during each cycle of operation of the machine, a movable controller operable to control the path of reciprocation of said tool and arranged to permit the tool at its first reciprocation in each cycle to move through a path of an extent to cause the tool to form a fastening receiving hole in a work piece presented to the machine and to cause the tool in its second reciprocation when it acts as a driver to move through a dill'erent path to drive a fastening into said hole, and means for moving the controller so as to control the path of reciprocation of the tool.

8. A fastening inserting machine having a tool serving as a combined awl and driver,

a carrier for said tool, a lifting block se cared to said carrier, a spring tending to force said carrier and tool toward the work, a cam arranged to engage the lifting block to move the carrier away from the work against the tension of said sprin a stop arranged for movement into and out of the path of movement of a member carried by the carrier, and cyclically operating means arranged to move said stop alternately into and out of the path of movement of said engn'iber to vary the stroke of said tool.

PA fastening inserting machine having a toof serving as a combined awl and driver, a carrier for said tool, a lifting block secured to said carrier. a spring tending to force said carrier and tool toward the work, a cam arranged to engage the lifting block to move the carrier away from the work against the tension of said spring twice during each cycle of operation of the machine thus causing two strokes of the carrier and tool during each cycle, a stop arranged for movement into and out of the path of movement of a member carried by the tool carrier, and cyclically operating means arranged to hold said stop out of the path of movement of said member during the lirst stroke and in said path during the second stroke of the carrier and tool in each cycle of operation.

10. A fastening inserting machine having a tool acting both as an awl and as a driver, a work support movable between two extreme positions and having a hole arranged when the work support is in one of its extreme positions in alinement with the path of movement of said tool to receive the end of said tool and the chip punched from the work when the tool acts as an awl, said work support having also a clenching cavity positioned in line with said tool when the work support is in its other extreme position to facilitate the heading of the entering end of a fastening inserted when said tool acts as a driver, and power operated means for moving the work support from one position to the other to present said hole and said clenching cavity alternately in the line of movement of said tool according as the latter is acting as an awl or a driver.

11. A fastening inserting machine having a tool acting both as an awl and as a driver, power operated means for reciprocating said tool alternately through a longer path when it acts as an awl and through a shorter path when it acts as a driver, a work support having a hole adapted to receive the chip punched from the work by the tool when the tool acts as an awl and a clenching cavity formed and arranged to facilitate the heading of the fastening inserted when the tool acts as a driver, and power operated means for moving said work sup port back and forth to present the hole or the clenching cavity in alinement with said tool according as the latter is acting as an awl or as a driver.

12. A fastening inserting machine having a tool acting both as an awl and as a driver,

means for severing fastenings from a strip of fastening material constructed and arranged to form a fish-tail point upon each fastening severed, a spring tending to force said tool toward a work piece presented to the machine, means for raising the tool against the action of said spring and for then releasing the tool to permit the spring to force the tool toward the work, and means for causing the tool alternately to penetrate the work to form a fastening receiving opening and to drive a fastening in said opening.

in testimony whereof I have signed my name to this specification.

FRED N. LA CHAPELLE.

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